Winding-head.



W. F. SMITH.

` WINDING HEAD. APPucATloN m50 ocr. a, 1913.

Patented June '29, 1915.

4 SHEETS-SHEET lw. F. swim.' WINDING HEAD.

APPLICATION FILED 0C- 3. v1913!.

Patented June Q9, 1915.

WINDING HEAD.

non mio ocr.

W. F. SMITH.

. ma, Patented guna 29 1915.

' 4 EEEEEEEEEEEE a,

W. F. SMITH.

WINDING HEAD.

APPLlcAnoN msn ocr. 3. 1913.

4 SHEETS-SHEET 4.

lmfm Z'f/.

.Patented J une 29, 1915.

' aunar-ns.

.a citizenof the United States, residing at or new rc e t n. sun, or onrcacdinnrnors, Ansinnen! rownsrnnir nnno'rnrc' n. rnaconronarron or remmers.

ine-nnen.

To all 'whom "it naar; sacem Be it own that 'WM F. l e;

Chicago, in the county ot (look and State of illinois, have invented a certain new and vuseful improvement in Winding-Heads, of

which the followingA isa full, clear, concise, and exact description.

rllhis invention relates Vto tape winding machines 'torfinsulating conductors, and

' more particularly to winding heads for such machines. 4 I

The object of this invention 1s to produce a winding head for applying the tape to a conductor in ,a novel and advantageous manner.

Among the features of this invention are the improved ineens for v from the roll to the wire, ,the improved means for applying tension to the tape roll, the means'for forming afridge in the tape and applying said ridged tape to the wire,

and other details of structure andcombina-- tion of parts as will hereinafter more clearly appear. f

TheJinsulated conductor produced .by thls improved winding head is being made the 4 subject of anothery application by me, Serial No. 793,130, filed October 3, 1913. l

rihis invention is illustratedV in the `accompanying drawings in which the same reference characters are used throughout to des-v igiate the same parts, and-in which- AFigure 1 is a front 'elevation partly-in sectionv of a. tape winding head embodying this inventiomand illustrating one form of tension bracket. Fig. 2 is a sectional view on line 2-2 of Fig. 1. Fig. 3 is a plan view on line 3 3 of Fig.' 1. Fi 4 is a. front Aelevation partly in section o a flier bracket land a form of tension bracket, and a portion of a spindle to which they are attached. Fig. 5 is a view in perspective of a. flier bracket. Fig. 6 is a sectional view of. the spindle on line 6-6 of Fig. 2. Fig. 7 is a view inpersfiective of a polisher. Fig. 8

is a view in perspective of an adjustable grooved guide member. Fig. 9 isa view i perspective of a grooved friction shoe. Fig. 1 0 is a view in perspectiye of a portion of the spindle with the rooved guide member in proper position, il uetrating the registering' of the tapered surfaces o the spindle and grooved guide member. Fi 11 is a back elevation of the upper portion of the' 'side elevation on lines 12-12 voi said ridged tape on the guiding the tapeis mounted upon an, extension 14 outer rim 18 Speciiication oi' Letters etent. .l3nt-,ignited Juli@ 299- jlgl lipplicstionle'd October 3, 1913. serial his.

spindle, illustrating the tape passing through a slot in the spindle. Fig. 12 is a of Fig. 11. Fig. 13 is a side elevation of the upper portion of the spindle, a portion thereof being removed, illustrating the tape passing on to the wire between the grooved friction shoe and the adjustable groovecl guide member. Fig. 14 is a. sectional view on lines AMM: of Fig. 11.' Fig. 15 is a front elevation of the upper portion of the spindle with the grooved frictionshoe removed, illustrating ai ridge formed in the tape and the forming wireq, Fig. `16 is a view in perspective of theportion of the spindle and the grooved guide member over which the tape passes and illustrating the starting of the ridge formed in the tape by the coaction of the grooved rictionshoe and the groovedguide member. `Referring to the drawings, 10 is af be -face plate 15 comprising a hub 16, radially extending arms 17, 17, and an our rim 18,

of the pulley 13. The extensionll of the pulley 13 Yalso, carries a hollow spindle 25. The lower end ofthe spindle 25 is provided with a re- 26, whlch forms-the revolving central support orthe tape roll-27. Mounted-upon the of the face plate 15 is a. tape guide comprising a bracket 28 and a guide4 roller 32 supported between ball bearings 31, 31 in said bracket.

Lengthwise through the center of the spindle 25 is provided a 'hole 39 through which passes the wire to be wound. The

cessedortion to receive a thin steel collar front of the spindle y25 is cut away to the l center line thereof for a portion of its'length betweenthe points 40 and 41 toy form a flat surface 29. Said spindle 25 is further provided with a slot 42, extending from point" 4:0 to point 41 adjacent the hole 39,- and at an angle ,of 90 to the fiat surface 29. kThe spindle 25 isbored out from the top onk the center line downfto aV point 43, andy has mounted therein a guide bushing t. The guidev bushing 44:, which is provided with a through the spindle 25 and with an exten sion 46 registering lwith aslot 47. in a p01-,

-groove .45, registering with theI hole 39,

isher 48, is also provided with a tapered,"r portion 33 near its upper end for thel purpose hereinafter described. The polisher 48 i I thereby holding said polisher and the guide bushing 44'in proper relation. The end of the cap-48 is provided with an opening 51 for the passage of the conductor, Pivoted at\52 on a at surface 53 of the spindle 25, is a sprin 54. 'Io the upper end of the spring 54 1s pivoted a friction shoe 55 having a groove 56 in its v:tace,*which` registers with the groove 45 in the guide bushing 44. .The spindle 25 is tapered near its top, as shown at 57 in Fig. 10, to form with the tapered portion 33 of the guide block 44 a guiding surface for the tape as will hereinafter more fully appear.` Referringfnow to the tensioning device, this is as follows: On the side of the spindle 25 near thebottom thereof, is provided a dove-tailed slotinto which fits 'a tensionl bracket 66. This tension bracket 66 comprises a hollow cylindrical body portion 67 in which is slidably mounted a hollow plunger 68, upon the bottom of which is pivotally mounted friction shoe 69. A cap nut 70 is mounted upon the top of the body portion 67 and supports an adjustment screw 71 -which extends down into the hollow plunger 68. An adjustment nut 72 having a projection 73, which registers with a slot 74 in 'the wall of the plunger 68 and a groove 75 in the body portion 67, is carried by the adjustment screw 71. Encircling the adjustment screw 71 is a spring 76, one end of which rests against the lower side of the adjustment nut 72, and the other end against the bottom of the hollow` plunger 68.y A set screw- 77 is provided in the cap nut 70 for locking the adjustment screw 71 in any desired position.

The lower end of the spindle 25 is provided with a slot 80 into which'fits. an extension 81 of the fiier bracket 82. The'extension 81 is provided with a spring latch 83 which locks the Hier bracket 82 to the spindle 25 when the extension 81 is inserted within the slot 80. The end of the extension Slengages a slot 84 in the'body portion 67 of the tension bracket 66 and locks the tension bracket to the spindle. A guide Iroller 89 is supported upon ball bearings 88, 88v Vbetween the ends of the bracket member 82.v In Fig. 1 is shown another and preferred form of tension bracket 100. This tension bracket 100 comprises three hollow cylindrical body portions 101, 102 and 103, separated and supported by web portionsl104, 104. In each of the body portions 101, 102 and 103 there are a plunger, an adjustment l103 a friction shoe 107.

screw, an adjustment nut and a spring similar in every respect to those contained in the tension bracket 66 which has been hereinbefore described. y To the bottom of the plunger of the body portion 101 is pivoted a friction shoe 105, ofthe body portion 102 a friction shoe 106 and of the body portion The shoes 105 and 106 are pivotally connected at 108 and the `shoes 106 and 107 at 109. The shoe 107 has an extension 110 which engages a projection 111 of the shoe 106 to limit the downward movement of the shoe 107 about its pivot point 109. The' shoe 106 has an extension 112 which engages a projection 113 of the shoe 105 to limit the downward portion 33 of the guide portion 34 and about 'a wire which passes up through the hollow shaft 12, the hole 39 in the spindle`25, the groove 45 in the guide 44 and the hole 49 of the polisher 48. The `tape for the particular size of wire to be wound must have a width somewhat greater than is necessary to form a smooth spiral about the wire in order that sufficient tape may be had with which to form the ridge therein. By reference to. Figs. 10 to 16 inclusive, in connection with the following'description of operation, it will be readily understood how the ridge is formed in the tape as it is being applied to the wire. As the tape is led over the tapered portion 57 of the spindle 25 and the tapered portion 33 of the guide bushing 44, it is wound about the wire just back of p the friction shoe y55, the actual winding about the wire taking place between `the groove 56 of the shoe`j55 and the groove 45 of the gulde bushing 44. 'In leaving the tapered portion 33 of the guide 44, the

upper edge of the tape overlaps the lower edge o f the preceding wrap and contacts therewlth. Due to the vsurface of the guide bushing 44 over which the.lower edge of the tape passes being at a.-greater distance from the wire than that surface over which Y -the upper edge passes, there is a tendency ever, prevents the coning of the tape and forces the lower. edge thereof toward the wire, thereby causing the tape to buckle along vthe longitudinal thereof, as the wire with the tape Wound thereon is led forward through the machine. rlhis buck` ling of the tape takes place at a definite portion in the width of the tape, depending upon the angle of application thereof which is controlled by the vtaper 57 of the spindle 25, and the angle at which the Hier bracket 82 is disposed 'to the spindle 25. The

.buckled portion of the tape forms-a conpasses up through the hole 49 in the polisher 48,'Which determines the degree of hardness of the ridge-and the diameter over the insulated conductor. The lower endof the hole 49 through the polishe'r 48 is taperedl lf .head, both ends of the .be soft and the tap this taper islong, the ridge in the tape will e' will be loose on the wire. It is highly important that the ridge should be hard and the'tape tight on the Wire so that the portion of the tape not usedl in forming the ridge may be properly supported from the wire by the ridge, 'and so that the -wire may b'e properly centeredwithin thetape, making a uniformly insulated conductor thereof. The taper should be reasonably short in order that the ridge fornred in the tape may be hard. ln order to facilitate the assembling of the winding hole through the polisher are provided with tapers.

' The advantages of thety y hea-d covered by this invention 'are many,

the principal ones being as face late4 is provided with a plurality of radially extending arms 17, 17, which insure a' minimum amount of friction between the tape roll and the face plate.' The tension bracket 100 with its plurality of spring pressed plungers and connected shoes, sures uniform tension beingv obtained on the ltape regardless of the diameter of the tape roll. The several plungers of the ten- `sion bracket control the tension on the parfsu.

ticular portion of thetype roll covered by l'the shoe connected to its particular plunger. The arrangement of the three spring pressedl plungers and their interconnected friction shoes is such that when the diameter oi' the tape roll is great enough for all theshoes to rest thereon,l the tension on the tape roll will be the greatest, with a definite tension on' they tape; as 'the' tape roll decreases'in diameter, the tension thereon will be correspondingly reduced, but the same uniform tension on the ta e will still be maintained. This is accomplis'ied by means of the pivoting of the friction shoes 105, 106 and 107 to their corresponding plungers and of the pivoting of such shoes one to the other.

. As the ta 'e roll decreases in diametenthe shoe ,107 `1s forced down, due to the actibn .tape roll to the wire.

pe oi winding l follows "lhespindle for supporting a tension 110 engages the projection 111 of the shoe 106 when its downward movement is arrested and the tension exerted by the shoe 107 is relieved. As ythe diameter of the tape roll is still further decreased, the shoe 106 operates in a similar manner. The guide rollers are mounted in ball bearings *which tend to still further decrease the tension upon the tape as it is led from ,the rlhe means provided for the locking of the tension bracket'and the guide roller bracket to the spindle, are such that these parts may be lreadily removed andadjusted. 'lhe taper of the spindle and the angle at which the vflier bracket is disposed to the spindle, are such that an ln the operation of the Winding head which has been hereinbefore described, it has been found that the best results are ob- -tained by the use `of adjustable parts of particular dimensions when` insulating different sizes of wire with the corresponding sizes of tapetherefor. 'llhe parts which are removable and interchangeable for different sizes of Wire are: the guide lbushing 44, the polisher 48 and the flier bracket 82. For example, assuming that #'10 B. & S. gage wire is to be wound with tape 7/8 .in width and .014 in thickness, it has been foundthat the best results are obtained by having an angle of 40 between the flier bracket 82 and the spindle 25, a taper 57 in the spindle 25 equal to 5, the diameter of the groove 45 in the guide bushing le equal to 15/64, thediameter of the groove 56 in the friction shoe 55 equal to l5/64",.and the diameter of the hole 49 inthe polisher 48 equal to 1.5/64, Withfthe ends thereof terminating in a radius of 1/32.y It will'be obvious, however, that this invention is not limited to the particular dimensions herein given.

'l' claim:

l. In a Winding head, a faceplate and tape roll and having a passage therethrough for the Wire tobe wound, guides for the tape from the periphery of the roll to the'wlre, a guide for the Wire carried by said spindle, and a springpressed shoe carried by said spindle and cooperatin with the guidecarried bysaid spindle or forming a ridge in the tape as it is Wound on the wire.

2. ln a winding head, a face plate and spindle for sup orting a tape roll and having a passage t erethrough for the Wire to be Wound, guides for the ta e from the periphery of the roll to the w1re a guide for the wire carried by said spindle, a spring- .of the spring pressed plunger, until its eX- .y

lSO

vpressedfshoe carried by said spindle and cooperatin with the guide carried by said spindle or forming .a ridge in the tape as` it is. Wound on the Wire, and a olisher carried by said spindle through which the tapewound wire asses.

` 3. lIn a winding head, a face plate and.

spindle for supporting a tape roll `and having a'passage therethrough for the wire `to be.wound, a tension bracket carried by said spindle and having a plurality ofspring pressed plungers for applying uniform tension to the tape roll, guides for the tape from the periphery of the roll to the wire, and means for forming a ridge in the tape as it is Wound on the Wire.

" shoe carried by said spindle and coperat- 4. In a Windinghead, a face plate and spindle for supporting a tape roll and having a passage therethrough for the Wire to be wound, guides for the tape from the periphery of the roll to the Wire, a removable and interchangeable guide for the wire carried by said spindle, and a springpressed in with said removable and interchangeab e guide for forming a ridge in the tapeY as it is Wound on'the wire.

5. In a Winding head, a face plate, a spin- 'dle having a tapered portion, said face plate and said spindle for supporting a tape. roll` 6. In a .winding head, a 'face plate and spindle for supporting a tape roll and having a passage therethrough for the wire to Y be Wound, av tension bracket carriedby said spindle and having a spring pressed plunger for applying tension to the tape roll, guides for the tape from the roll tothe Wire,

- one of said guides being mounted upon said spindle and coperating Witl1 said tension bracket to lock it in position, and means for forming a .ridge in the tape as it is Wound on the wire.

.7. In a winding head, a face plate and splndle for supporting a tape roll and having a' passage therethrough for the wire to be wound, a tension bracket carried by said spindle and having a spring pressed p unger for applying tensionl to the ta e roll, and guides for the tape fromthe rol to the wire, one of said guides being mounted upon said spindle and coperating with said tension bracket to lock it in osition.

8. In a winding. ead, a face plate and spindle for supporting a tape roll and having a passage therethrough for the wire to 1able guide tolock it in position.

be Wound, guides for the tape from the periphery ofthe roll to the Wire, a removable said removable and interchangeable guide for forming a ridge in the tape as it is Wound on the Wire, and a polisher for determining .the degree of, hardness of the ridge coperating With saidremovable andl interchange- 9. In a Winding head, a face plate, a spindle having a tapered portion, said face plate and said spindle for supporting a tape roll and having a passagel therethrough for the Wire to be Wound, guides for the tape from the periphery of the roll to the Wire, a remov- Y able and interchangeable guide for the Wire carried by said spindle, and a spring pressed shoe carried bysaid spindle and coperat-y ing With said removable and interchangeable guide for forming a ridge in the tape as it is Wound on the Wire, one of said guides being mounted on said spindle and disposed at `an angle with respect thereto and cooperating With the tapered portion of said s indlefor determining the vposition of the ridge in the tape. y

10. In a winding head, a face plate and spindle for supporting a tape roll and havmg a passage therethrough f or the Wire to be Wound, a tension bracket carried by said' spindle and having a spring pressed plunger for applying tension to the tape roll,

`guides for the tape from the periphery of the roll to the Wire, a removable and interchangeable guide for thewire carried bysaid spindle, and a spring pressed shoe carried by said spindle and coperating with said removable and interchangeable guide for forming the ridge in the tape as it is wound on the Wire.

11. In a winding head therethrough for the Wire to be Wound, a support for the tape roll, guides for the tape from the periphery of the roll 'to the Wire,a removable and interchangeable guideA for the wire carried by said spindle, and a spring ipressed shoe carried by said spindle and cooperating with said removable and interhaving a passage changeable guide -for forming a ridge in the tape as it iswound on'the Wire, whereby the rid e onlycomes in contact with the Wire an supports the tape.

12. In a winding head, a vvface plate and spindle for supporting a tape roll and having a passage therethrough for the wire to be Wound, a ltension bracket carried, byv said Y spindle and having a spring pressed plunger for applying tension to the 'tape roll, guides for the tape from the roll to thaw-ire,

one of said guides being mounted uponrsaidV spindle and cooperating .with 'said tension bracket to lock 1t in position, la removable and interchangeable guide for the Wire oarried by said spindle, and a spring pressed shoe carried bysaid spindle and cooperating With said removable and interchangeable guide for forming a ridge in the tape as it is Wound on the Wire.

13. In a winding head7 a face plate, a spindle having a tapered portion, said face plate and said spindle for supporting a tape roll and having a passage therethrough for the Wire to be Wound, guides for the tape from the roll to the wire, a removable and interchangeable guide for the Wire carried by said spindle, a spring pressed grooved shoe carried by saidspindle and coperating Withsaid removable and interchangeable Y guide for forming the ridge in the tape asit is Wound on the wire, 'one of said guides be-y 'ness of the ridge and cooperating with. said removable and interchangeable guide to lock it in position. l

ln Witness whereof, l hereunto subscribe my name this 26th day of September A. D. 1913.

WLLAM F. SMITH.

JWitnesses:

R. R. IRELAND, A. PRUESSMAN. 

